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Regulator fitted to D/State pcp tube, now venting from regulator breather hole.

Generally it the small seal on the piston that causes it to vent. That's providing the reg body seals are doing there job.
 
Shadowryder said:
As above fitted as per all instructions and YES the breath hole is in correct place,
have stripped and rebuilt this tube 5 times today fitting new Orings to reg everytime
{cannot see any fault with ones removed}

but soon as I apply air it vents from the reg breather hole,
Click to expand...
Actually give it a good owld blast, not a namby Pamby slow recharge
Just f'ing give it some.
It somtimes helps seat everything.
I hate drilling holes in main tubes, if I can I only fit regs that don't require drilling.
 
the logun-ator said:
Actually give it a good owld blast, not a namby Pamby slow recharge
Just f'ing give it some.
It somtimes helps seat everything.
I hate drilling holes in main tubes, if I can I only fit regs that don't require drilling.
Click to expand...
Tried that pal,
well up to the 190 in my bottle,gonna get bottle filled tomorrow and try it again,
going to hydraulics place tomorrow too to get some decent O rings.
 
The 2 big outer seals . the forward one is high pressure side that normally seals ok . the rear one is normally the problem as there is less pressure pressing against it to create the seal.
Give it a good dose of silicon grease in the slot before fitting the seal . then run your fingers round the seal pressing it in to its slot/groove.
Get some blutac and make a pond around the breather and put in a spot af fairy .
20210530_124236.jpg

Fill the cylinder and leave it for a while to see if the seal settles.

PS. when when fitting the reg in the cylinder rub silcon grease in to the cylinder threads first this will help the seal over the threads. once the reg is passed the threads clean the grease from the threads unless you have a end seal plug . ie .on the exhaust valve body .
dont worrie about any excess silicon in the cylinder as it will catch any crappp that is loose in your tube and keep it from getting to your reg or valves
 
1260engineer said:
The 2 big outer seals . the forward one is high pressure side that normally seals ok . the rear one is normally the problem as there is less pressure pressing against it to create the seal.
Give it a good dose of silicon grease in the slot before fitting the seal . then run your fingers round the seal pressing it in to its slot/groove.
Get some blutac and make a pond around the breather and put in a spot af fairy .
View attachment 222250
Fill the cylinder and leave it for a while to see if the seal settles.

PS. when when fitting the reg in the cylinder rub silcon grease in to the cylinder threads first this will help the seal over the threads. once the reg is passed the threads clean the grease from the threads unless you have a end seal plug . ie .on the exhaust valve body .
dont worrie about any excess silicon in the cylinder as it will catch any crappp that is loose in your tube and keep it from getting to your reg or valves
Click to expand...
Thank you John,
Much appreciated info,
its the one at the front of guns tube thats not holding couple times got it to 120 bar left it a bit was ok.
went back took it to 200 bar and blowing like hell.
once I get some more O rings will give that a try later today.
Cheers
J.
 
Last edited:
Shadowryder said:
Thank you John,
Much appreciated info,
its the one at the front of guns tube thats not holding couple times got it to 120 bar left it a bit was ok.
went back took it to 200 bar and blowing like hell.
once I get some more O rings will give that a try later today.
Cheers
J.
Click to expand...
My names not John mate 🤣😂🤣😂 J . then mates changed it to Jay coz i make shiny
things .
Front end plug or the front seal on the reg . Sorry am trying to catch up 😂🤣😂
stick a pic up 👍
 
Sorry buddy, my mistake,
my name is John and most folks call me J !!!
Anyway its the seal marked in picture thats letting air thru to escape from breath hole.
The reg itself appears to be much smaller diameter than tube needing thicker O rings to fill gap.
1-XLR-MIRAGE-LR90-QC-550x550.jpg
 
Shadowryder said:
Sorry buddy, my mistake,
my name is John and most folks call me J !!!
Anyway its the seal marked in picture thats letting air thru to escape from breath hole.
The reg itself appears to be much smaller diameter than tube needing thicker O rings to fill gap.
View attachment 222326
Click to expand...
how do you know its that seal ?

PS
You can call me john if it makes you happy
 
Hmangphilly said:
how do you know its that seal ?

PS
You can call me john if it makes you happy
Click to expand...
Hiya Phil, {John} :ROFLMAO:
I am assuming its that one as its the only one between the air supply and breathe hole and also its always deformed in someway when I take reg back out.
I have used up several O rings of differing {close} sizes based on diameter of reg and diameter of tube.
the one that came with it originally didn't even form any friction fit on inside of tube.
 
Shadowryder said:
Hiya Phil, {John} :ROFLMAO:
I am assuming its that one as its the only one between the air supply and breathe hole and also its always deformed in someway when I take reg back out.
I have used up several O rings of differing {close} sizes based on diameter of reg and diameter of tube.
the one that came with it originally didn't even form any friction fit on inside of tube.
Click to expand...
it could be either of those 2 external seals . or either of the internal piston seals mate .

we need to start eliminating suspects
 
Gissa Clue!!!! :ROFLMAO:
cos this is me right now,Head bang 65Head bang 65
The reg was gifted to me brand new in bag labelled for this gun,I havent stripped it or meddled with it at all apart from pushing it in n out of gun tube and changing numerous O rings.
and thats about limit of my knowledge on regulators.
can follow instructions but if it goes tits up i'm lost my mate.
 
Shadowryder said:
Gissa Clue!!!! :ROFLMAO:
cos this is me right now,Head bang 65Head bang 65
The reg was gifted to me brand new in bag labelled for this gun,I havent stripped it or meddled with it at all apart from pushing it in n out of gun tube and changing numerous O rings.
and thats about limit of my knowledge on regulators.
can follow instructions but if it goes tits up i'm lost my mate.
Click to expand...
I'll have a think .
I'm sure i had to do this before but i cant remember what i came up with .
might be tricky , i wouldnt be surprised if i made up other fittings and sealing rings and wotnot to isolate individual parts
 
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